Huà bù tóujī, bàn jù duō.

話不投機, 半句多。

Lit [If the] talk is disagreeable, [then another] half sentence is too much.

Fig It's a waste of breath to continue to talk with someone with whom one does not agree.

Note [Note: huàbùtóujī is used as a set phrase meaning “to be at loggerheads”; see also jiǔ féng zhījǐ below.]

Topics AGREEMENT DISAGREEMENT TALK